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  • Title: Trends in delivery hospitalizations with pregestational and gestational diabetes mellitus and associated outcomes: 2000-2019.
    Author: Gorsch LP, Wen T, Lonier JY, Zork N, Mourad M, D'Alton ME, Friedman AM.
    Journal: Am J Obstet Gynecol; 2023 Jul; 229(1):63.e1-63.e14. PubMed ID: 36509174.
    Abstract:
    BACKGROUND: Pregestational diabetes mellitus and its associated risks may be increasing in the obstetrical population. OBJECTIVE: This study aimed to characterize the trends in delivery hospitalizations with pregestational diabetes mellitus, the prevalence of chronic diabetes complications, and the risk for adverse outcomes. STUDY DESIGN: This repeated, cross-sectional study used the United States National Inpatient Sample to identify delivery hospitalizations with pregestational diabetes mellitus between 2000 and 2019. Trends in delivery hospitalizations with pregestational diabetes mellitus were assessed using joinpoint regression to determine the average annual percent change. Trends in chronic diabetes complications, including chronic kidney disease, neuropathy, peripheral vascular disease, and diabetic retinopathy, were also analyzed. The risk for adverse obstetrical outcomes was compared between patients with and those without pregestational diabetes mellitus using adjusted logistic regression models that were adjusted for demographic, clinical, and hospital characteristics with adjusted odds ratios with 95% confidence intervals as measures of association. RESULTS: Of 76.7 million delivery hospitalizations, 179,885 (0.23%) had type 1 diabetes mellitus, 430,544 (0.56%) had type 2 diabetes mellitus, and 99,327 (0.13%) had unspecified diabetes mellitus. From 2000 to 2019, the prevalence of diabetes mellitus increased from 1.8 to 7.3 per 1000 deliveries for type 2 diabetes mellitus (average annual percent change, 8.0%; 95% confidence interval, 6.9%-9.2%), from 1.5 to 3.2 per 1000 deliveries for unspecified diabetes mellitus (average annual percent change, 3.9%; 95% confidence interval, 1.4%-6.3%), and from 2.7 in 2000 to 2.8 per 1000 deliveries (average annual percent change, 0.2%; 95% confidence interval, -0.8% to 1.3%) for type 1 diabetes mellitus. The prevalence of chronic diabetes mellitus complications increased from 2.7% to 5.6% over the study period (average annual percent change, 5.9%; 95% confidence interval, 3.7%-8.0%). Pregestational diabetes mellitus was associated with severe maternal morbidity, cesarean delivery, hypertensive disorders of pregnancy, preterm birth, and shoulder dystocia. CONCLUSION: Pregestational diabetes mellitus increased over the study period, driven by a quadrupling in the prevalence of type 2 diabetes mellitus. Notably, the prevalence of chronic diabetes mellitus complications doubled concomitantly. Pregestational diabetes mellitus was associated with a range of adverse outcomes. These findings are further evidence that pregestational diabetes mellitus is an important contributor to maternal risk and that optimizing diabetes care in women of childbearing age will continue to be of major public health importance.
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